George Roussos / BLE_iBeacon_Exercise

Birkbeck College Mobile and Ubiquitous Computing IoT Lab Exercise 2

Dependencies:   BLE_API_Native_blog

mbed/InterruptIn.h@0:e8fdba0ed044, 2015-03-07 (annotated)

Committer:
gkroussos
Date:
Sat Mar 07 16:34:53 2015 +0000
Revision:
0:e8fdba0ed044
MUC IoT Workshop v1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gkroussos 0:e8fdba0ed044 1 /* mbed Microcontroller Library
gkroussos 0:e8fdba0ed044 2 * Copyright (c) 2006-2013 ARM Limited
gkroussos 0:e8fdba0ed044 3 *
gkroussos 0:e8fdba0ed044 4 * Licensed under the Apache License, Version 2.0 (the "License");
gkroussos 0:e8fdba0ed044 5 * you may not use this file except in compliance with the License.
gkroussos 0:e8fdba0ed044 6 * You may obtain a copy of the License at
gkroussos 0:e8fdba0ed044 7 *
gkroussos 0:e8fdba0ed044 8 * http://www.apache.org/licenses/LICENSE-2.0
gkroussos 0:e8fdba0ed044 9 *
gkroussos 0:e8fdba0ed044 10 * Unless required by applicable law or agreed to in writing, software
gkroussos 0:e8fdba0ed044 11 * distributed under the License is distributed on an "AS IS" BASIS,
gkroussos 0:e8fdba0ed044 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
gkroussos 0:e8fdba0ed044 13 * See the License for the specific language governing permissions and
gkroussos 0:e8fdba0ed044 14 * limitations under the License.
gkroussos 0:e8fdba0ed044 15 */
gkroussos 0:e8fdba0ed044 16 #ifndef MBED_INTERRUPTIN_H
gkroussos 0:e8fdba0ed044 17 #define MBED_INTERRUPTIN_H
gkroussos 0:e8fdba0ed044 18
gkroussos 0:e8fdba0ed044 19 #include "platform.h"
gkroussos 0:e8fdba0ed044 20
gkroussos 0:e8fdba0ed044 21 #if DEVICE_INTERRUPTIN
gkroussos 0:e8fdba0ed044 22
gkroussos 0:e8fdba0ed044 23 #include "gpio_api.h"
gkroussos 0:e8fdba0ed044 24 #include "gpio_irq_api.h"
gkroussos 0:e8fdba0ed044 25 #include "FunctionPointer.h"
gkroussos 0:e8fdba0ed044 26
gkroussos 0:e8fdba0ed044 27 namespace mbed {
gkroussos 0:e8fdba0ed044 28
gkroussos 0:e8fdba0ed044 29 /** A digital interrupt input, used to call a function on a rising or falling edge
gkroussos 0:e8fdba0ed044 30 *
gkroussos 0:e8fdba0ed044 31 * Example:
gkroussos 0:e8fdba0ed044 32 * @code
gkroussos 0:e8fdba0ed044 33 * // Flash an LED while waiting for events
gkroussos 0:e8fdba0ed044 34 *
gkroussos 0:e8fdba0ed044 35 * #include "mbed.h"
gkroussos 0:e8fdba0ed044 36 *
gkroussos 0:e8fdba0ed044 37 * InterruptIn event(p16);
gkroussos 0:e8fdba0ed044 38 * DigitalOut led(LED1);
gkroussos 0:e8fdba0ed044 39 *
gkroussos 0:e8fdba0ed044 40 * void trigger() {
gkroussos 0:e8fdba0ed044 41 * printf("triggered!\n");
gkroussos 0:e8fdba0ed044 42 * }
gkroussos 0:e8fdba0ed044 43 *
gkroussos 0:e8fdba0ed044 44 * int main() {
gkroussos 0:e8fdba0ed044 45 * event.rise(&trigger);
gkroussos 0:e8fdba0ed044 46 * while(1) {
gkroussos 0:e8fdba0ed044 47 * led = !led;
gkroussos 0:e8fdba0ed044 48 * wait(0.25);
gkroussos 0:e8fdba0ed044 49 * }
gkroussos 0:e8fdba0ed044 50 * }
gkroussos 0:e8fdba0ed044 51 * @endcode
gkroussos 0:e8fdba0ed044 52 */
gkroussos 0:e8fdba0ed044 53 class InterruptIn {
gkroussos 0:e8fdba0ed044 54
gkroussos 0:e8fdba0ed044 55 public:
gkroussos 0:e8fdba0ed044 56
gkroussos 0:e8fdba0ed044 57 /** Create an InterruptIn connected to the specified pin
gkroussos 0:e8fdba0ed044 58 *
gkroussos 0:e8fdba0ed044 59 * @param pin InterruptIn pin to connect to
gkroussos 0:e8fdba0ed044 60 * @param name (optional) A string to identify the object
gkroussos 0:e8fdba0ed044 61 */
gkroussos 0:e8fdba0ed044 62 InterruptIn(PinName pin);
gkroussos 0:e8fdba0ed044 63 virtual ~InterruptIn();
gkroussos 0:e8fdba0ed044 64
gkroussos 0:e8fdba0ed044 65 int read();
gkroussos 0:e8fdba0ed044 66 #ifdef MBED_OPERATORS
gkroussos 0:e8fdba0ed044 67 operator int();
gkroussos 0:e8fdba0ed044 68
gkroussos 0:e8fdba0ed044 69 #endif
gkroussos 0:e8fdba0ed044 70
gkroussos 0:e8fdba0ed044 71 /** Attach a function to call when a rising edge occurs on the input
gkroussos 0:e8fdba0ed044 72 *
gkroussos 0:e8fdba0ed044 73 * @param fptr A pointer to a void function, or 0 to set as none
gkroussos 0:e8fdba0ed044 74 */
gkroussos 0:e8fdba0ed044 75 void rise(void (*fptr)(void));
gkroussos 0:e8fdba0ed044 76
gkroussos 0:e8fdba0ed044 77 /** Attach a member function to call when a rising edge occurs on the input
gkroussos 0:e8fdba0ed044 78 *
gkroussos 0:e8fdba0ed044 79 * @param tptr pointer to the object to call the member function on
gkroussos 0:e8fdba0ed044 80 * @param mptr pointer to the member function to be called
gkroussos 0:e8fdba0ed044 81 */
gkroussos 0:e8fdba0ed044 82 template<typename T>
gkroussos 0:e8fdba0ed044 83 void rise(T* tptr, void (T::*mptr)(void)) {
gkroussos 0:e8fdba0ed044 84 _rise.attach(tptr, mptr);
gkroussos 0:e8fdba0ed044 85 gpio_irq_set(&gpio_irq, IRQ_RISE, 1);
gkroussos 0:e8fdba0ed044 86 }
gkroussos 0:e8fdba0ed044 87
gkroussos 0:e8fdba0ed044 88 /** Attach a function to call when a falling edge occurs on the input
gkroussos 0:e8fdba0ed044 89 *
gkroussos 0:e8fdba0ed044 90 * @param fptr A pointer to a void function, or 0 to set as none
gkroussos 0:e8fdba0ed044 91 */
gkroussos 0:e8fdba0ed044 92 void fall(void (*fptr)(void));
gkroussos 0:e8fdba0ed044 93
gkroussos 0:e8fdba0ed044 94 /** Attach a member function to call when a falling edge occurs on the input
gkroussos 0:e8fdba0ed044 95 *
gkroussos 0:e8fdba0ed044 96 * @param tptr pointer to the object to call the member function on
gkroussos 0:e8fdba0ed044 97 * @param mptr pointer to the member function to be called
gkroussos 0:e8fdba0ed044 98 */
gkroussos 0:e8fdba0ed044 99 template<typename T>
gkroussos 0:e8fdba0ed044 100 void fall(T* tptr, void (T::*mptr)(void)) {
gkroussos 0:e8fdba0ed044 101 _fall.attach(tptr, mptr);
gkroussos 0:e8fdba0ed044 102 gpio_irq_set(&gpio_irq, IRQ_FALL, 1);
gkroussos 0:e8fdba0ed044 103 }
gkroussos 0:e8fdba0ed044 104
gkroussos 0:e8fdba0ed044 105 /** Set the input pin mode
gkroussos 0:e8fdba0ed044 106 *
gkroussos 0:e8fdba0ed044 107 * @param mode PullUp, PullDown, PullNone
gkroussos 0:e8fdba0ed044 108 */
gkroussos 0:e8fdba0ed044 109 void mode(PinMode pull);
gkroussos 0:e8fdba0ed044 110
gkroussos 0:e8fdba0ed044 111 /** Enable IRQ. This method depends on hw implementation, might enable one
gkroussos 0:e8fdba0ed044 112 * port interrupts. For further information, check gpio_irq_enable().
gkroussos 0:e8fdba0ed044 113 */
gkroussos 0:e8fdba0ed044 114 void enable_irq();
gkroussos 0:e8fdba0ed044 115
gkroussos 0:e8fdba0ed044 116 /** Disable IRQ. This method depends on hw implementation, might disable one
gkroussos 0:e8fdba0ed044 117 * port interrupts. For further information, check gpio_irq_disable().
gkroussos 0:e8fdba0ed044 118 */
gkroussos 0:e8fdba0ed044 119 void disable_irq();
gkroussos 0:e8fdba0ed044 120
gkroussos 0:e8fdba0ed044 121 static void _irq_handler(uint32_t id, gpio_irq_event event);
gkroussos 0:e8fdba0ed044 122
gkroussos 0:e8fdba0ed044 123 protected:
gkroussos 0:e8fdba0ed044 124 gpio_t gpio;
gkroussos 0:e8fdba0ed044 125 gpio_irq_t gpio_irq;
gkroussos 0:e8fdba0ed044 126
gkroussos 0:e8fdba0ed044 127 FunctionPointer _rise;
gkroussos 0:e8fdba0ed044 128 FunctionPointer _fall;
gkroussos 0:e8fdba0ed044 129 };
gkroussos 0:e8fdba0ed044 130
gkroussos 0:e8fdba0ed044 131 } // namespace mbed
gkroussos 0:e8fdba0ed044 132
gkroussos 0:e8fdba0ed044 133 #endif
gkroussos 0:e8fdba0ed044 134
gkroussos 0:e8fdba0ed044 135 #endif